../ dmsp_15_ephemeris_20130614.txt 22-Jun-2023 00:22 109494 dmsp_16_ephemeris_20130614.txt 22-Jun-2023 00:22 109602 dmsp_17_ephemeris_20130614.txt 22-Jun-2023 00:22 109554 dmsp_18_ephemeris_20130614.txt 22-Jun-2023 00:22 109584